组合机床液压系统设计(含CAD系统原理图)(文献综述,论文说明书15700字,CAD图纸3张)
摘要
本文主要阐述了立式组合机床液压系统的设计,通过分析液压系统的工作条件组合机床动力滑台,液压系统的主要参数,使基本计划,拟定液压系统原理图,液压元件的选择和系统性能检查,地图项目,编制技术文件。熟悉机床液压系统的设计方法和设计过程,使机床为了实现工件定位、夹紧、快进,劳动,停留,快速返回等待接下来的处理。设计一个结构简单、运行可靠、成本低、效率高、操作简单、维护方便的液压传动系统。
该系统使用一个液压泵多个液压缸油,当系统的需求变化流,使用蓄电池发展循环,可以减少系统的功率损耗和发热。立式组合机床液压系统是用来控制液压动力滑台,通过控制动力滑台实现组合机床和加工来完成各种操作。有五个液压系统的液压缸,其中两个为饲料工作缸,缸定位、夹紧缸和气缸。系统采用标准的液压动力滑台,自动化程度高,定位,夹紧液压系统实现中,入站工作,谎言滑台也可以同时实现工作循环。在每个站都快进的,职工之间互不干涉,迅速撤退。进口节流背压控制方法,顺序背压阀的小背压只有快进,小功率损耗;到阀能自动回使工作压力增加,进给速度平稳。通过电气系统,可以自动完成所有操作的设计要求。
关 键 词: 组合机床; 动力滑台; 液压系统
Abstract
This thesis describes the combination of vertical and horizontal hydraulic system design，dynamic sliding through the working condition of modular machine tool hydraulic system analysis to determine the main parameters of hydraulic system and the development of the basic procedures, developed hydraulic system diagram, the choice of hydraulic components and system performance check, drawing engineering drawings and technical documents. Familiar with hydraulic system design method and design steps, so that the machine to achieve the work piece positioning, clamping, fast forward, to work, stay, and quickly return to wait for the next processing and other activities. Design a simple structure, reliable operation, low cost, high efficiency, simple operation, convenient maintenance, hydraulic transmission system.
System USES the diversity of a hydraulic pump, hydraulic cylinder oil, when the great changes in flow demand growth using battery circuit, system can reduce power loss and heat. The combination of vertical and horizontal hydraulic system is used to control hydraulic power sliding table,
by controlling the power slider to achieve the combination of the various actions in order to complete the machine work pieces. There are five cylinder hydraulic system, including two working cylinder, a positioning cylinder, cylinder clamping cylinder and delivery. System using standard hydraulic power sliding, high degree of automation, positioning, clamping hydraulic system implemented for workers to vertical, horizontal sliding table can realize the work cycle at the same time. Fast forward to each station to meet, work forward, rewind, non-interference in each other. Imported throttle speed regulation method of back pressure, order form small back pressure fast into the back pressure valve, power consumption is small, can work automatically when getting into the back pressure increase, feed rate and stability. Through the cooperation and electrical system, can automatically complete all the design requirements of action.
Key words: combination machine tools; power sliding feed table;
hydraulic system, pump and accumulator
目 录
第一章引言 1
第二章液压系统工况分析 2
2.1理论依据、设计方法和研究步骤 2
2.2.1机床的主要运动 2
2.2.2动力滑台的特性 2
2.3组合机床动力滑台液压系统的使用要求及负载分析 3
第三章方案分析及液压原理图的拟定 4
3.1立卧式动力滑台工作要求 4
3.2计算液压缸的外负载、绘制工作循环图 4
3.3计算液压缸外负载，绘制工作循环图 4
3.3.1动力滑台轴向切削力的计算 4
3.3.2计算液压缸外负载、绘制工作循环图 5
3.4拟定液压系统方案、绘制液压系统原理图 6
3.4.1拟定液压系统方案、绘制液压系统原理 7
3.4.2绘制液压系统图 10
3.4.3该系统工作原理分析 11
第四章方案分析及液压原理图的拟定 12
4.1确定液压缸的主要参数 12
4.1.1初选液压缸的工作压力 12
4.1.2确定液压缸的主要结构参数 12
4.2 计算卧式动力滑台液压缸的工作压力和输入功率 13
4.2.1计算卧式动力滑台液压缸的工作压力 13
4.2.2计算液压缸的输入功率 14
4.3 设计计算立式动力滑台液压缸 15
4.3.1选取工作压力及背压力 15
4.3.2确定液压缸结构尺寸 15
4.3.3认证液压缸筒壁厚 16
4.3.4定液压缸筒的长度 16
4.3.5校核活塞杆的稳定性 17
4.3.6液压缸各截面积 18
4.3.7初定液压缸流量 18
4.3.8计算液压缸的输入功率 18
4.4 选择液压泵 19
4.4.1液压泵工作压力、流量、驱动功率计算 19
4.5蓄能器的选择 20
4.6选择液压阀 21
4.6调整各阀的参数 22
4.6.1流量阀各参数的调定 22
4.6.2压力阀参数的调定 23
4.6.3其他阀压力参数的调定 24
3.6.4油管的尺寸 25
第五章集成块的设计 26
5.1 集成块简介 26
5.2 集成块的设计原则 26
5.3 集成块的结构设计 27
第六章 油箱的设计 29
6.1确定油箱容量 29
6.2油箱的结构设计 29
第七章系统稳定性验算 33
7.1液压泵工作压力稳定性校核 33
7.2系统热能工况的稳定性校核 35
7.2.1系统效率 35
7.2.2系统热能工况的稳定性校核 36
结 论 37
参考文献 38
致 谢 39
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